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How to use lazyInitializer method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactLazy.js

Source:ReactLazy.js

...104    const Pending = 0;105    const Resolved = 1;106    const Rejected = 2; 107  */108  // _result æ¯å½åç»ä»¶çå¼æ¥å è½½ç»æï¼å¦æè¿ä¸ªç»ä»¶ä¹åå è½½è¿ï¼åç´æ¥ä½¿ç¨ _resultï¼å¨ä¸å¤ lazyInitializer() å½æ°æä½ç°109  const payload: Payload<T> = {110    // We use these fields to store the result.111    _status: -1,112    _result: ctor,113  };114  // å¶ä¸åå«ä»¥ä¸åå®¹ï¼è¯¥çæ¬å 16.7 ççæ¬çè¿ååå®¹æäºä¸å¤ªä¸æ ·ï¼ä½æ¯åè½ä¸è´115  // lazyInitializer å è½½æ¨¡åçå½æ°116  const lazyType: LazyComponent<T, Payload<T>> = {117    $$typeof: REACT_LAZY_TYPE,118    _payload: payload,119    _init: lazyInitializer,120  };121  if (__DEV__) {122    // In production, this would just set it on the object....

09-hooks-extra.js

Source:09-hooks-extra.js

1// control props2import React from 'react';3import {Switch} from '../switch';4import _ from 'lodash';5const callAll = (...fns) => (...args) =>6  fns.forEach(fn => fn && fn(...args));7const noop = () => {};8function toggleReducer(state, {type, initialState}) {9  switch (type) {10    case useToggle.types.toggle: {11      return {on: !state.on};12    }13    case useToggle.types.reset: {14      return initialState;15    }16    default: {17      throw new Error(`Unsupported type: ${type}`);18    }19  }20}21function useControlledReducer(22  reducer,23  initialState,24  lazyInitializer,25  options,26) {27  if (typeof lazyInitializer === 'object') {28    options = lazyInitializer;29    lazyInitializer = undefined;30  }31  const controlledState = _.omitBy(32    options.controlledState,33    _.isUndefined,34  );35  const [internalState, dispatch] = React.useReducer(36    (state, action) => {37      const changes = reducer({...state, ...controlledState}, action);38      const controlledChanges = {...changes, ...controlledState};39      return _.isEqual(state, controlledChanges)40        ? state41        : controlledChanges;42    },43    initialState,44    lazyInitializer,45  );46  return [47    {...internalState, ...controlledState},48    action => {49      dispatch(action);50      options.onChange(51        reducer({...internalState, ...controlledState}, action),52        action,53      );54    },55  ];56}57function useToggle({58  onChange = noop,59  initialOn = false,60  reducer = toggleReducer,61  state: controlledState = {},62} = {}) {63  const {current: initialState} = React.useRef({on: initialOn});64  const [state, dispatch] = useControlledReducer(65    reducer,66    initialState,67    {68      controlledState,69      onChange,70    },71  );72  const {on} = state;73  function toggle() {74    dispatch({type: useToggle.types.toggle});75  }76  function reset() {77    dispatch({type: useToggle.types.reset, initialState});78  }79  function getTogglerProps({onClick, ...props} = {}) {80    return {81      'aria-pressed': on,82      onClick: callAll(onClick, toggle),83      ...props,84    };85  }86  return {87    on,88    reset,89    toggle,90    getTogglerProps,91  };92}93useToggle.reducer = toggleReducer;94useToggle.types = {95  toggle: 'toggle',96  reset: 'reset',97};98function Toggle({on: controlledOn, onChange}) {99  const {on, getTogglerProps} = useToggle({100    state: {on: controlledOn},101    onChange,102  });103  const props = getTogglerProps({on});104  return <Switch {...props} />;105}106function Usage() {107  const [bothOn, setBothOn] = React.useState(false);108  const [timesClicked, setTimesClicked] = React.useState(0);109  function handleToggleChange(state, action) {110    if (action.type === useToggle.types.toggle && timesClicked > 4) {111      return;112    }113    setBothOn(state.on);114    setTimesClicked(c => c + 1);115  }116  function handleResetClick(params) {117    setBothOn(false);118    setTimesClicked(0);119  }120  return (121    <div>122      <div>123        <Toggle on={bothOn} onChange={handleToggleChange} />124        <Toggle on={bothOn} onChange={handleToggleChange} />125      </div>126      {timesClicked > 4 ? (127        <div data-testid="notice">128          Whoa, you clicked too much!129          <br />130        </div>131      ) : (132        <div data-testid="click-count">133          Click count: {timesClicked}134        </div>135      )}136      <button onClick={handleResetClick}>Reset</button>137      <hr />138      <div>139        <div>Uncontrolled Toggle:</div>140        <Toggle141          onChange={(...args) =>142            console.info('Uncontrolled Toggle onChange', ...args)143          }144        />145      </div>146    </div>147  );148}149Usage.title = 'Control Props';150export default Usage;...

lazy-load.js

Source:lazy-load.js

1/**2 * appµÄÑÓ³Ù¼ÓÔØ3 */4define(['jQuery', 'Log', 'PageContext', 'widget.LazyInitializer'], 5function($, Log, PageContext, LazyInitializer) {6var log = new Log('plugin.LazyLoad');7var LazyLoad = {8	init: function() {9		var self = this;10		this.doInit('body');11		// domreadyºó£¬¶¯Ì¬ÔØÈëµÄappÐèÒªÑÓ³Ù¼ÓÔØ12		site.on('domready-complete', function() {13			site.on('app-view-ready ui-lazy-load-bind', function(app) {14				self.doInit(app);	15			});16		});17		18		// Ö÷¶¯´¥·¢ÑÓ³Ù¼ÓÔØ, ÒÀÀµÊÂ¼þ ui-lazy-load-fire19		site.on('ui-lazy-load-trigger', function(div) {20			div = $(div);21			if (!div.length || div.data('lazyLoadTrigger')) {22				return;23			}24			div.data('lazyLoadTrigger', true);25			26			var tpls = $('textarea.lazy-load-template', div);27			tpls.each(function() {28				var fn = $(this).data('lazyLoadHandler');29				fn && fn();30			});31		});32	},33	doInit: function(div) {34		var self = this,35			tpls = $('textarea.lazy-load-template', div);36		tpls.each(function() {37			var tpl = $(this),38				proxy = tpl.prev('div.lazy-load-loading');39			40			if (!proxy.length) {41				proxy = $('<div>');42				tpl.before(proxy);43			}44			var fn = function() {45				self.initTpl(proxy, tpl);46			};47			tpl.data('lazyLoadHandler', fn);48			new LazyInitializer(proxy, fn);49		});50	},51	initTpl: function(proxy, tpl) {52		var html = tpl.val(),53			node = $(html),54			app = null,55			box = null;56		57		log.info('lazy load for ' + node);58		node.addClass('ui-lazy-load');59		60		proxy.replaceWith(node);61		tpl.remove();62		if (node.is('div[mod-box]')) {63			box = node;64			app = $('>div.mod', box);65		} else if (node.is('div[data-app]')) {66			app = node;67		}68		box && site.trigger('app-box-ready', box);69		app && site.trigger('app-view-ready', app);70	}71};72PageContext.add('plugin.LazyLoad', LazyLoad);73		...

lazy.js

Source:lazy.js

1const Uninitialized = -1;2const Pending = 0;3const Resolved = 1;4const Rejected = 2;5function lazyInitializer(payload) {6  if (payload._status === Uninitialized) {7    const ctor = payload._result;8    const thenable = ctor();9    // Táº£i dá»¯ liá»u10    thenable.then(11      moduleObject => {12        if (payload._status === Pending || payload._status === Uninitialized) {13          // Transition to the next state.14          const resolved = (payload);15          resolved._status = Resolved; // Khi táº£i thÃ nh cÃ´ng thÃ¬ chuyá»n status thÃ nh Resolved, resut lÃ  moduleObject vá»«a táº£i16          resolved._result = moduleObject;17        }18      },19      error => {...

cmsx-utils.js

Source:cmsx-utils.js

1var utils = {};2utils.bindAll = function(obj) {3	var k, entry;4	for (k in obj) {5		entry = obj[k];6		if (typeof entry === 'function') {7			obj[k] = obj[k].bind(obj);8		}9	}10};11utils.extend = function(dest, srcObjects) {12	var src, i, k;13	for (i = 1; i < arguments.length; i++) {14		src = arguments[i];15		for (k in src) {16			if (src.hasOwnProperty(k)) {17				dest[k] = src[k];18			}19		}20	}21	return dest;22};23function LazyInitializer(initializer) {24	this._initializer = initializer;25}26LazyInitializer.prototype.get = function() {27	if (!this._instance) {28		this._instance = this._initializer();29	}30	return this._instance;31};32LazyInitializer.prototype.destroy = function() {33	if (this._instance) {34		this._instance.destroy();35		delete this._instance;36	}37};38utils.lazy = function(initializer) {39	return new LazyInitializer(initializer);40};41/*var decorate = function(decoratorFn, superFn) {42	return function() {43		decoratorFn.apply(this, [superFn].concat(Array.prototype.slice.call(arguments)));44	};45};46utils.decorate = function(obj, decorators) {47	var i, k, decorator;48	obj = obj || {};49	for (i = 1; i < arguments.length; i++) {50		decorator = arguments[i];51		for (k in decorator) {52			if (decorator.hasOwnProperty(k)) {53				if (typeof obj[k] === 'function') {54					if (typeof obj[k] === 'function') {55						// Decorate existing function56						obj[k] = decorate(decorator[k], obj[k]);57					} else if (obj[k] === undefined) {58						// Assign new plain function from decorator59						obj[k] = decorator[k];60					} else {61						throw 'Value on property ' + k + ' cannot be decorated';62					}63				} else { // Set value (should be primitive value only since else it is shared in all instances)64					obj[k] = decorator[k];65				}66			}67		}68	}69	return obj;70};*/...

lazy-initializer.js

Source:lazy-initializer.js

1/**2 * ÑÓ³Ù³õÊ¼»¯×é¼þ3 * @author qijun.weiqj4 */5define('ui.LazyInitializer', ['jQuery', 'Log', 'util.Util'], function($, Log, Util) {6var log = new Log('ui.LazyInitializer');7var win = $(window),8	lazyList = [],9	inited = false;10var LazyInitializer = function(div, fn) {11	div = $(div);12	lazyList.push({ 13		element: div, 14		fn: function() {15			try {16				fn.apply(this, arguments);17			} catch (e) {18				log.error('lazy init error');19			}20		}21	});22	23	if (!inited) {24		win.on('scroll resize', function() {25			Util.schedule('widget-lazy-initializer', handler, 100);26		});27		inited = true;28		guard();29	}30	31	Util.schedule('widget-lazy-initializer', handler, 100);32};33var handler = function() {34	var sTop = win.scrollTop(),35		wHeight = win.height();36	$.each(lazyList, function(index, item) {37		if (item.inited) {38			return;39		}40		var eTop = item.element.offset().top;41		if (eTop < sTop + wHeight) {42			log.info('lazy initialize for ' + item.element);43			item.fn();44			item.inited = true;45			item.element.trigger('widget-lazy-initializer');46		}		47	});48};49var guard = function() {50	var i = 0,51		fn = function() {52			handler();	53			i++;54			i < 20 && setTimeout(fn, 500);55		};56	setTimeout(fn, 500);57};58return LazyInitializer;...

image-lazy-load.js

Source:image-lazy-load.js

1/**2 * Í¼Æ¬ÑÓ³Ù¼ÓÔØ3 * @author qijun.weiqj4 */5define('ui.ImageLazyLoad', 6		['jQuery', 'Class', 'ui.LazyInitializer'], 7		function($, Class, LazyInitializer) {8return new Class({9	init: function(div) {10		var selector = 'img[data-lazy-load-src]',11			fn = function() {12				var imgs = $(selector, div);13				imgs.each(function() {14					var img = $(this),15						src = img.data('lazyLoadSrc');16					img.attr('src', src);17					img.trigger('widget-image-lazy-load');18				});19			};20		new LazyInitializer(div, fn);21	}22	23});24	25		...

useLazyRef.js

Source:useLazyRef.js

...5  useDebugValue(current);6  if (current !== null) {7    return ref;8  }9  const lazyInitializerValue = lazyInitializer();10  ref.current = lazyInitializerValue;11  return ref;12};...

Using AI Code Generation

1const { chromium } = require('playwright');2const { lazyInitializer } = require('playwright/lib/server/browserType');3(async () => {4  const browser = await lazyInitializer('chromium', async () => {5    return await chromium.launch();6  });7  const context = await browser.newContext();8  const page = await context.newPage();9  await page.screenshot({ path: `example.png` });10  await browser.close();11})();

Using AI Code Generation

1const { lazyInitializer } = require('playwright/lib/client/lazyInitializer');2const { Page } = require('playwright/lib/client/page');3const { lazyInitializer } = require('playwright/lib/client/lazyInitializer');4const { Page } = require('playwright/lib/client/page');5Page.prototype.addScriptTag = async function (options) {6    const tag = await lazyInitializer.initInPage(this, options, 'addScriptTag', [options]);7    return tag;8};9Page.prototype.addStyleTag = async function (options) {10    const tag = await lazyInitializer.initInPage(this, options, 'addStyleTag', [options]);11    return tag;12};13Page.prototype.addInitScript = async function (options) {14    const tag = await lazyInitializer.initInPage(this, options, 'addInitScript', [options]);15    return tag;16};17Page.prototype.addInitScript = async function (options) {18    const tag = await lazyInitializer.initInPage(this, options, 'addInitScript', [options]);19    return tag;20};21Page.prototype.evaluateHandle = async function (pageFunction, ...args) {22    const tag = await lazyInitializer.initInPage(this, pageFunction, 'evaluateHandle', [pageFunction, ...args]);23    return tag;24};25Page.prototype.evaluate = async function (pageFunction, ...args) {26    const tag = await lazyInitializer.initInPage(this, pageFunction, 'evaluate', [pageFunction, ...args]);27    return tag;28};29Page.prototype.$ = async function (selector) {30    const tag = await lazyInitializer.initInPage(this, selector, '$', [selector]);31    return tag;32};33Page.prototype.$$ = async function (selector) {34    const tag = await lazyInitializer.initInPage(this, selector, '$$', [selector]);35    return tag;36};37Page.prototype.$eval = async function (selector, pageFunction, ...args) {38    const tag = await lazyInitializer.initInPage(this, selector, '$eval', [selector, pageFunction, ...args]);39    return tag;40};41Page.prototype.$$eval = async function (selector, pageFunction, ...args) {42    const tag = await lazyInitializer.initInPage(this, selector, '$$eval', [selector, pageFunction, ...args]);43    return tag;44};45Page.prototype.$x = async function (xpath) {

Using AI Code Generation

1const { lazyInitializer } = require('playwright-core/lib/server/injected/lazyInitializer');2const { createPageInContext } = require('playwright-core/lib/server/injected/injectedScript');3const { createJSHandle } = require('playwright-core/lib/server/injected/injectedScript');4const { createJSHandleFromSerializable } = require('playwright-core/lib/server/injected/injectedScript');5const { createJSHandleFromElementHandle } = require('playwright-core/lib/server/injected/injectedScript');6const { createJSHandleFromChannel } = require('playwright-core/lib/server/injected/injectedScript');7const { createJSHandleFromHandle } = require('playwright-core/lib/server/injected/injectedScript');8const { createJSHandleFromSelector } = require('playwright-core/lib/server/injected/injectedScript');9const { createJSHandleFromEvaluateHandle } = require('playwright-core/lib/server/injected/injectedScript');10const { createJSHandleFromError } = require('playwright-core/lib/server/injected/injectedScript');11const { createJSHandleFromValue } = require('playwright-core/lib/server/injected/injectedScript');12const { createJSHandleFromObject } = require('playwright-core/lib/server/injected/injectedScript');13const { createJSHandleFromPromise } = require('playwright-core/lib/server/injected/injectedScript');14const { createJSHandleFromCallArgument } = require('playwright-core/lib/server/injected/injectedScript');15const { createJSHandleFromCallArgumentSync } = require('playwright-core/lib/server/injected/injectedScript');16const { createJSHandleFromCallArgumentAsync } = require('playwright-core/lib/server/injected/injectedScript');17const { createJSHandleFromCallArgumentPromise } = require('playwright-core/lib/server/injected/injectedScript');18const { createJSHandleFromCallArgumentValue } = require('playwright-core/lib/server/injected/injectedScript');19const { createJSHandleFromCallArgumentObject } = require('playwright-core/lib/server/injected/injectedScript');20const { createJSHandleFromCallArgumentArray } = require('playwright-core/lib/server/injected/injectedScript');21const { createJSHandleFromCallArgumentFunction } = require('playwright-core/lib/server/injected/injectedScript');22const { createJSHandleFromCallArgumentHandle } = require('playwright-core/lib/server/injected/injectedScript');

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